We’ve been getting complaints that are our e-mails are going to spam lately. I’ve done a search on blacklists and we’re not listed anywhere. I also have SPF, DKIM records. I just added a DMARC record to hopefully help the situation. Other than the missing DMARC record, everything seems to be configured correctly.
DNS records look like:
Server IP: 184.108.40.206 Domain: example.com Mail Server: mail.example.com, on the same server (220.127.116.11) A record: www -> 18.104.22.168 -> Cloudflare proxied A record: mail -> 22.214.171.124 -> DNS only MX record: example.com -> mail.example.com -> DNS only PTR records: none
E-mail addresses are similar to:
The nslookup results are as follows:
> nslookup example.com Non-authoritative answer: Name: example.com Address: 126.96.36.199 etc... (several Cloudflare IP addresses) > nslookup mail.example.com Non-authoritative answer: Name: mail.example.com Address: 188.8.131.52 > nslookup 184.108.40.206 220.127.116.11.in-addr.arpa name = example.com. Authoritative answers can be found from:
Could the problem be because the reverse IP address does not point to
example.com? I would think a mail server would fallback to
Any tips from experts?